1975 C-120 Automatic, 12hp Kohler.       HARD SHIFTING PROBLEM
 
	 
 
	Starting to shift hard especially going into reverse. Also, shifting is not 'smooth'.  
 
	Tried adjusting 'Friction Collar' looser and snugger. Made it a little better but then things locked up - it did not want to go into reverse.
 
	Manually  pushed wheel to get tractor to go into reverse.
 
	 
 
	Could it be the:
 
	   Cam on the neutral adjustment,
 
	   Lubrication on the neutral adjustment,
 
	   The transmission,
 
	   The friction collar?
 
	 
 
	Suggestions welcome.